{"product_id":"the-football","title":"The Football","description":"\u003cp\u003eThe Football\u003c\/p\u003e\n\u003cp\u003eWritten by: \u003cspan\u003eÉtienne Ghys\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eUncover the hidden math of the world’s most popular ball.\u003c\/p\u003e\n\u003cp\u003eThe Football takes readers on an entertaining and fact-filled exploration of the mathematical secrets of the most popular spherical object on the planet. The football is familiar to billions of fans across the globe, but how many really look at it? Do footballs all have the same shape? Spoiler: not exactly. How does their shape affect how they play? With Étienne Ghys as our guide, we discover why ballistics, friction, and air flow are key to scoring goals – and why the football is a mathematical problem that engineers are still trying to solve.\u003c\/p\u003e\n\u003cp\u003eGhys begins with the classic Telstar ball used in the 1970 World Cup in Mexico. Its twelve black pentagons and twenty white hexagons are what most of us picture when we think of the sport. Following the story through successive World Cups, he shows how engineers constantly challenge themselves to reinvent the ball, aiming for a perfect sphere while accounting for manufacturing requirements and aerodynamics. Along the way, Ghys introduces us to the mathematics of Platonic solids, symmetries, polyhedra, turbulence, roughness, drag, and spin. He paints engaging portraits of the engineers and sports insiders who study and apply these phenomena and explains how the skills of players factor into how the ball behaves, whether the game is being played in stadiums, schoolyards, or backyards.\u003c\/p\u003e\n\u003cp\u003eFeaturing a wealth of color illustrations, The Football blends a lively narrative with insights from a world-renowned geometer to tell a mathematical story unlike any other.\u003c\/p\u003e\n\u003cp\u003eISBN: 9780691263120\u003c\/p\u003e\n\u003cp\u003ePage Count: 136 pages\u003c\/p\u003e\n\u003cp\u003eDimensions: 203 x 140 mm\u003c\/p\u003e\n\u003cp\u003ePublisher: Princeton University Press\u003c\/p\u003e\n\u003cp\u003eFormat: Hardback\u003c\/p\u003e\n\u003cp\u003eDate Published: 19 August 2025\u003c\/p\u003e\n\u003cp\u003eCountry: United States\u003c\/p\u003e\n\u003cp\u003eImprint: Princeton University Press\u003c\/p\u003e\n\u003cp\u003eIllustration: 164 color illus.\u003c\/p\u003e","brand":"Princeton University Press","offers":[{"title":"Default Title","offer_id":67660786467132,"sku":"41867","price":39.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/9905\/2092\/files\/The_Football.jpg?v=1791924476","url":"https:\/\/www.soccerunited.co.nz\/products\/the-football","provider":"Soccer United NZ","version":"1.0","type":"link"}